APPLIED LASER, Volume. 39, Issue 3, 490(2019)
Compact High Peak Power Pumped Dual-pass Nd:YVO4 Bounce Slab Amplifier
A simple and compact high peak power pumped single-stage dual-pass Nd:YVO4bounce slab amplifier is reported. In order to suppress the amplified spontaneous emission (ASE) during high peak power pumping, the upper and lower surfaces of the slab crystal are plated with germanium, and a dual-pass amplifying optical path is designed which grazing incidence total reflection center point does not overlap with the center point of the pumping area. The amplifier is used to amplify seed laser with a repetition rate of 200 Hz, a single pulse energy of 10 μJ and a pulse width of 24 ns. At a maximum pumping energy of 35 mJ, an amplified output laser with a single pulse energy of 2.7 mJ, a pulse width of 24.3 ns and a beam quality factor M2 of about 1.2 is obtained, the energy extraction efficiency is 7.7%.
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Hui Yongling, Jiang Menghua, Lei Hong, Li Qiang. Compact High Peak Power Pumped Dual-pass Nd:YVO4 Bounce Slab Amplifier[J]. APPLIED LASER, 2019, 39(3): 490
Received: Nov. 16, 2018
Accepted: --
Published Online: Aug. 7, 2019
The Author Email: Yongling Hui (hyl@bjut.edu.cn)